SCIENTIFIC PROCEEDINGS— cow^mwe^. 



13. Forbesia cancellata, gen. et sp. nov. (Sphenopteris, sp., Baily). By 



T. Johnson, d.sc, f.l.s. (Plates XIII. and XIV.) (January, 1912.) Is. 



14. The Inheritance of the Dun Coat-Colour in Horses. By James "Wilson, m.a., b.sc. 



(January, 1912.) Is. 



15. On the Vacuum Tube Spectra of the Vapours of some Metals and Metallic 



Chlorides. Part I. — Cadmium, Zinc, Thallium, Mercury, Tin, Bismuth, 

 Copper, Arsenic, Antimony, and Aluminium. By James H. Pollok, d.so. 

 (Plates XV. and XVI.) (February 21, 1912.) Is. 



16. Changes in the Osmotic Pressure of the Sap of the Developing Leaves of 



Syringa vulgaris. By Heney H. Dixon, sc.d., f.e.s., and W. E. G. Atkins, 

 M.A. (February 21, 1912.) 6d. 



17. Improvements in Equatorial Telescope Mountings. By Sie Howaed Geubb, 



F.E.S. (Plates XVII.-XIX.) (March 26, 1912.) Is. 



18. Variations in the Osmotic Pressure of the Sap of Ilex aquifolitim. By 



Heney H. Dixon, sc.d., f.e.s., and W. E. G. Atkins, m.a., a. i.e. (April 9, 

 1912.) 6d. 



19. Variations in the Osmotic Pressure of the Sap of the Leaves of Hedera helix. 



By Henry H. Dixon, sc.d., f.e.s., and W. E. G. Atkins, m.a., a.i.c. (April 

 9, 1912.) Gd. 



20. Heterangium hibernicum, sp. nov. : A Seed-bearing Heterangium from 



County Cork. By T. Johnson, d.sc, f.l.s. (Plates XX. and XXI.) 

 (April 12, 1912.) Is. 



21. On the Vacuum Tube Spectra of some Metals and Metallic Chlorides. Part 



II. — Lead, Iron, Manganese, Nickel, Cobalt, Chromium, Barium, Calcium, 

 Strontium, Magnesium, Potassium, Sodium, and Lithium. By James H. 

 Pollok, D.So. (Plates XXII. and XXIII.) (May 7, 1912.) Is. 



DUBLIN: HBINTKIl AT fHK UNIVKBSITV PBliBS BY J-ONSONBV AMD OIBBS. 



